[Comm] нагружена система - прерывания?

[Maks Re]

Здравствуйте,

копирование файлов, с диска на внешний usb-диск 

тормоза - дикие.

[max на lynx ~]$ w
 15:14:33 up  1:44,  4 users,  load average: 7,44, 6,71, 5,61

[max на lynx ~]$ cat /proc/interrupts 
           CPU0       CPU1       CPU2       CPU3       
  0:         15          0          0          0  IR-IO-APIC-edge      timer
  1:         12          0          0          0  IR-IO-APIC-edge      i8042
  8:          1          0          0          0  IR-IO-APIC-edge      rtc0
  9:       7264          0          0          0  IR-IO-APIC-fasteoi   acpi
 12:       1962          0          0          0  IR-IO-APIC-edge      i8042
 16:     132350          0          0          0  IR-IO-APIC-fasteoi   ehci_hcd:usb1, mmc0
 18:          0          0          0          0  IR-IO-APIC-fasteoi   i801_smbus
 23:         37          0          0          0  IR-IO-APIC-fasteoi   ehci_hcd:usb2
 40:          0          0          0          0  DMAR_MSI-edge      dmar0
 41:          0          0          0          0  DMAR_MSI-edge      dmar1
 42:      64578          0          0          0  IR-PCI-MSI-edge      i915
 43:    2706159          0          0          0  IR-PCI-MSI-edge      ahci
 44:        743          0          0          0  IR-PCI-MSI-edge      snd_hda_intel
 45:    5842871          0          0          0  IR-PCI-MSI-edge      xhci_hcd
 46:          0          0          0          0  IR-PCI-MSI-edge      xhci_hcd
 47:          0          0          0          0  IR-PCI-MSI-edge      xhci_hcd
 48:          0          0          0          0  IR-PCI-MSI-edge      xhci_hcd
 49:          0          0          0          0  IR-PCI-MSI-edge      xhci_hcd
 50:     584473          0          0          0  IR-PCI-MSI-edge      iwlwifi
 51:       3123          0          0          0  IR-PCI-MSI-edge      eth0
NMI:        290        323        286        315   Non-maskable interrupts
LOC:    3016006    1773477    2022964    1505377   Local timer interrupts
SPU:          0          0          0          0   Spurious interrupts
PMI:        290        322        285        314   Performance monitoring interrupts
IWI:      32786      30212      36653      31100   IRQ work interrupts
RTR:          0          0          0          0   APIC ICR read retries
RES:    3495713    7379735    7572734    7053270   Rescheduling interrupts
CAL:     175262     146691     157425     146781   Function call interrupts
TLB:     135886     143691     130035     144360   TLB shootdowns
TRM:          0          0          0          0   Thermal event interrupts
THR:          0          0          0          0   Threshold APIC interrupts
MCE:          0          0          0          0   Machine check exceptions
MCP:         22         22         22         22   Machine check polls
ERR:          0
MIS:          0


что нужно сделать?

# uname -a
Linux lynx.localdomain 3.14.17-std-def-alt1 #1 SMP Mon Sep 1 11:51:31 UTC 2014 x86_64 GNU/Linux

предыдущее ядро вело себя также..

железо  thinkpad x220

# lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor Peak]
0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)
0e:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)